Quarterly report pursuant to Section 13 or 15(d)

Convertible Senior Notes (Details)

v3.22.1
Convertible Senior Notes (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2020
USD ($)
Debt Instrument, Redemption [Line Items]          
Repayment of convertible senior notes $ 143,774 $ 143,118      
Convertible senior notes $ 281,403   $ 424,827    
Maturity Year 2022          
Debt Instrument, Redemption [Line Items]          
Convertible senior notes conversion ratio   0.0632040      
Maturity Year 2026          
Debt Instrument, Redemption [Line Items]          
Convertible senior notes conversion ratio 0.1355014   0.1355014    
Convertible Debt [Member] | Maturity Year 2022          
Debt Instrument, Redemption [Line Items]          
Aggregate principal amount     $ 143,800   $ 287,500
Proceeds from convertible senior notes       $ 282,200  
Convertible senior notes interest rate per annum 6.25%        
Repayment of convertible senior notes $ 143,700        
Convertible Debt [Member] | Maturity Year 2026          
Debt Instrument, Redemption [Line Items]          
Aggregate principal amount 287,500        
Proceeds from convertible senior notes $ 279,900        
Convertible senior notes interest rate per annum 6.25%